 |
Electronic Components Datasheet Search |
|
|
Electronic Components Datasheet Search |
|
MR4530 Datasheet(PDF) 16 Page - Shindengen Electric Mfg.Co.Ltd |
|
|
|||||||||||||||||||||||||||||
MR4530 Datasheet(HTML) 16 Page - Shindengen Electric Mfg.Co.Ltd |
|
|
16 / 43 page  Shindengen Electric MFG.CO.,LTD - 16 - 4.4 Selecting constants for peripheral components The table below gives constants for MR4000 peripheral components. Reference value Component MR45XX Series MR47XX Series MR40XX Series C112 This capacitor determines the resonance frequency. Select the value based on noise, efficiency, and other factors. 1200p - 3300pF - 330pF 820pF - 2200pF C113 This is the power supply voltage rectification capacitor. If the value is small, operation at startup easily becomes intermittent. If this is too large, startup time will lengthen. 47 - 100 μF C114 This is the partial resonance adjustment capacitor. Adjust this capacitor with R115 so that turn-on occurs at the resonance trough. 10p - 330pF C115 This capacitor is used to reduce noise at Pin 2. It is also beneficial for gain phase adjustments. If the value is too large, the frequency response may degrade. 4700pF 100p - 2200pF R113 This is the current limiting damper resistor for C108. Select the value after considering noise, efficiency, and other factors. 0 to several ohms R114 This is the overcurrent detection resistor. It determines the droop point. See [4.5 Selecting constants for droop circuit]. R115 This resistor limits the Z/C pin current. Approximately 20 kΩ R116 This resistor limits the Z/C pin current. Approximately 10 kΩ R117 Adjust the value according to the droop characteristics. Set to a value slightly higher than the droop point set with R114. Tens of k Ω R151 This resistor compensates for droop based on the input voltage. Adjust the value based on droop characteristics. Not required Approximately 50 kΩ D111 Select a high-speed diode in the 900 V and 1A class. Not required High-speed diode, 900 V and 1 A class DZ151 This zener diode compensates for droop based on the input voltage. Not required See Section 4.5. R151, D151 and DZ151 are additional components for auto-sensing input specifications. T101 C104 C103 D101 C105 L101 C101 F101 C106 R101 Vin D112 R114 PH111 2 1 4 3 7 R151 R115 D141 DZ151 C114 PH141 C115 C113 R117 9 5 IC111 D151 C201 L201 C204 R266 C262 D201 VO R261 R263 R262 R201 R202 C261 IC261 R265 PH141 Q241 R241 SW241 R248 R247 C112 R113 D111 PH111 R116 Fig. 4.1 MR4000 Series reference power supply circuit 4. Design procedure |
|
Link URL |
| Does ALLDATASHEET help your business so far? [ DONATE ] |
About Alldatasheet | Advertisement | Contact us | Privacy Policy | Link to Datasheet | Link Exchange | Manufacturer List All Rights Reserved©Alldatasheet.com |
| Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
|
Family Site : ic2ic.com |
icmetro.com |
English ▼
English
Chinese
German
Japanese
Russian
Korean
Spanish
French
Italian
Portuguese
Polish
Vietnamese
Indian
Mexican
British
New Zealand
